Caldwell Grand Slam
The Caldwell Catalog features 109 deep-sky objects compiled by British astronomer Patrick Moore in 1995 as a complement to the Messier list. Spanning both hemispheres, it includes galaxies, nebulae, and globular clusters-ideal for observation and imaging.
After publishing and passing the official review, the Caldwell Objects Badge will be lit up.
Notes
Images submitted must be your own photography,stolen images or AI-generated content is prohibited.
How to Participate
Use topic Caldwell Grand Slam to post your images or videos.
How to Earn a Badge
Complete the assignment as required and submit the photos for review by the AstroNet. After passing the review, the corresponding Caldwell Objects will be unlocked,and upon completing the specified photo event for the assignment,the badge will be automatically awarded.